oh no!! I know
chickens are very happy to eat lizards; usually i'm trying to encourage them, since they eat spiders and other garden pests (slugs). I only rarely see them, but I know they're around.
I don't know what your weather is like there but they might be going for that nice new green growth because it's moist. Maybe you can put something else out for them to eat? (i'm thinking something quick-- can you sprout some storebought dry peas, lentils, etc?)